When to plant in Jefferson, GA
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Jefferson, Georgia — all computed from Jefferson's nearest NOAA weather station.
These dates come from a station roughly 17 km away, the closest with full normals; terrain around Jefferson (elevation, water, pavement) can move your real frost dates a few days either way. In zone 8b, Jefferson supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
COMMERCE 4 NNW · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Jefferson’s own odds, recorded at COMMERCE 4 NNW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 28 | Apr 11 | Mar 28 | Oct 15 | Oct 27 | Nov 10 |
| 32°F | Apr 14 | Mar 31 | Mar 12 | Oct 23 | Nov 6 | Nov 23 |
| 28°F | Apr 1 | Mar 16 | Feb 21 | Nov 3 | Nov 19 | Dec 9 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Jefferson, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 26 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Jefferson planting FAQ
When is the last spring frost in Jefferson, GA?
Jefferson's average last spring frost falls near March 31 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Jefferson, GA?
Expect Jefferson's first fall frost near November 6 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Jefferson in?
Jefferson is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Jefferson?
Jefferson has about 220 frost-free days — a long growing season — between the average last spring frost (March 31) and first fall frost (November 6).
When should I plant tomatoes in Jefferson?
For Jefferson, sow tomatoes indoors about February 3–February 17 and move the seedlings out around April 7, after the last spring frost.
Never miss a window in Jefferson
An email when it’s time to start seeds, transplant, and sow — timed to Jefferson’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Winder · 20 km
- Braselton · 20 km
- Gainesville · 27 km
- Flowery Branch · 29 km
- Athens-Clarke County · 30 km
- Buford · 36 km
- Monroe · 39 km
- Sugar Hill · 40 km
Frost dates recorded at COMMERCE 4 NNW, 17 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Jefferson, GA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00092180. Retrieved from https://blissgarden.com/georgia/jefferson.